Finding the Fourth Proportional to 87,912,244.80, 131,616,424.80 and 85,392,820.80
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Solution
The fourth proportional to 87,912,244.80, 131,616,424.80 and 85,392,820.80 is: 127,844,509.07
Step by Step Solution
- Step 1: Write the proportion equation
87,912,244.80 : 131,616,424.80 = 85,392,820.80 : x - Step 2: Convert to fraction form
87,912,244.80/131,616,424.80 = 85,392,820.80/x - Step 3: Cross multiply
87,912,244.80x = 131,616,424.80 × 85,392,820.80 - Step 4: Simplify right side
87,912,244.80x = 11,239,097,777,283,076 - Step 5: Solve for x
x = 11,239,097,777,283,076/87,912,244.80 - Step 6: Final answer
x = 127,844,509.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.